The creative team wanted to make sure that the Flash would resemble his comic book counterpart,The Flash Season 2 and not simply be a poor imitation. The series is primarily filmed in Vancouver, British Columbia, Canada.Initially envisioned as a backdoor pilot, the positive reception Gustin received during two appearances as Barry on Arrow led to executives choosing to develop a full pilot to make use of a larger budget and help flesh out Barry's world in more detail. Colleen Atwood,The Flash Season 2 DVD costume designer for Arrow, was brought in to design the Flash's suit, which was modeled after the comic books.